Corner coupling for a chair frame



FIG. 1 is a perspective view of a corner coupling for a chair frame of the present invention;

FIG. 2 is a front elevation view of a corner coupling for a chair frame of the present invention, the rear elevation view being a mirror image thereof;

FIG. 3 is a right side elevation view of a corner coupling for a chair frame of the present invention;

FIG. 4 is a left side elevation view of a corner coupling for a chair frame of the present invention;

FIG. 5 is a top plan view of a corner coupling for a chair frame of the present invention; and,

FIG. 6 is a bottom plan view of a corner coupling for a chair frame of the present invention.

The features of the chair frame shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a corner coupling for a chair frame, as shown and described. 